wpa_supplicant/wpas_glue.c

   1 /*
   2  * WPA Supplicant - Glue code to setup EAPOL and RSN modules
   3  * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eapol_supp/eapol_supp_sm.h"
  13 #include "rsn_supp/wpa.h"
  14 #include "eloop.h"
  15 #include "config.h"
  16 #include "l2_packet/l2_packet.h"
  17 #include "common/wpa_common.h"
  18 #include "wpa_supplicant_i.h"
  19 #include "driver_i.h"
  20 #include "rsn_supp/pmksa_cache.h"
  21 #include "sme.h"
  22 #include "common/ieee802_11_defs.h"
  23 #include "common/wpa_ctrl.h"
  24 #include "wpas_glue.h"
  25 #include "wps_supplicant.h"
  26 #include "bss.h"
  27 #include "scan.h"
  28 #include "notify.h"
  29
  30
  31 #ifndef CONFIG_NO_CONFIG_BLOBS
  32 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
  33 static void wpa_supplicant_set_config_blob(void *ctx,
  34                                            struct wpa_config_blob *blob)
  35 {
  36         struct wpa_supplicant *wpa_s = ctx;
  37         wpa_config_set_blob(wpa_s->conf, blob);
  38         if (wpa_s->conf->update_config) {
  39                 int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
  40                 if (ret) {
  41                         wpa_printf(MSG_DEBUG, "Failed to update config after "
  42                                    "blob set");
  43                 }
  44         }
  45 }
  46
  47
  48 static const struct wpa_config_blob *
  49 wpa_supplicant_get_config_blob(void *ctx, const char *name)
  50 {
  51         struct wpa_supplicant *wpa_s = ctx;
  52         return wpa_config_get_blob(wpa_s->conf, name);
  53 }
  54 #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
  55 #endif /* CONFIG_NO_CONFIG_BLOBS */
  56
  57
  58 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
  59 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
  60                             const void *data, u16 data_len,
  61                             size_t *msg_len, void **data_pos)
  62 {
  63         struct ieee802_1x_hdr *hdr;
  64
  65         *msg_len = sizeof(*hdr) + data_len;
  66         hdr = os_malloc(*msg_len);
  67         if (hdr == NULL)
  68                 return NULL;
  69
  70         hdr->version = wpa_s->conf->eapol_version;
  71         hdr->type = type;
  72         hdr->length = host_to_be16(data_len);
  73
  74         if (data)
  75                 os_memcpy(hdr + 1, data, data_len);
  76         else
  77                 os_memset(hdr + 1, 0, data_len);
  78
  79         if (data_pos)
  80                 *data_pos = hdr + 1;
  81
  82         return (u8 *) hdr;
  83 }
  84
  85
  86 /**
  87  * wpa_ether_send - Send Ethernet frame
  88  * @wpa_s: Pointer to wpa_supplicant data
  89  * @dest: Destination MAC address
  90  * @proto: Ethertype in host byte order
  91  * @buf: Frame payload starting from IEEE 802.1X header
  92  * @len: Frame payload length
  93  * Returns: >=0 on success, <0 on failure
  94  */
  95 static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
  96                           u16 proto, const u8 *buf, size_t len)
  97 {
  98         if (wpa_s->l2) {
  99                 return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
 100         }
 101
 102         return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
 103 }
 104 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
 105
 106
 107 #ifdef IEEE8021X_EAPOL
 108
 109 /**
 110  * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
 111  * @ctx: Pointer to wpa_supplicant data (wpa_s)
 112  * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
 113  * @buf: EAPOL payload (after IEEE 802.1X header)
 114  * @len: EAPOL payload length
 115  * Returns: >=0 on success, <0 on failure
 116  *
 117  * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
 118  * to the current Authenticator.
 119  */
 120 static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
 121                                      size_t len)
 122 {
 123         struct wpa_supplicant *wpa_s = ctx;
 124         u8 *msg, *dst, bssid[ETH_ALEN];
 125         size_t msglen;
 126         int res;
 127
 128         /* TODO: could add l2_packet_sendmsg that allows fragments to avoid
 129          * extra copy here */
 130
 131         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
 132             wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
 133                 /* Current SSID is not using IEEE 802.1X/EAP, so drop possible
 134                  * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
 135                  * machines. */
 136                 wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
 137                            "mode (type=%d len=%lu)", type,
 138                            (unsigned long) len);
 139                 return -1;
 140         }
 141
 142         if (pmksa_cache_get_current(wpa_s->wpa) &&
 143             type == IEEE802_1X_TYPE_EAPOL_START) {
 144                 /* Trying to use PMKSA caching - do not send EAPOL-Start frames
 145                  * since they will trigger full EAPOL authentication. */
 146                 wpa_printf(MSG_DEBUG, "RSN: PMKSA caching - do not send "
 147                            "EAPOL-Start");
 148                 return -1;
 149         }
 150
 151         if (is_zero_ether_addr(wpa_s->bssid)) {
 152                 wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
 153                            "EAPOL frame");
 154                 if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
 155                     !is_zero_ether_addr(bssid)) {
 156                         dst = bssid;
 157                         wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
 158                                    " from the driver as the EAPOL destination",
 159                                    MAC2STR(dst));
 160                 } else {
 161                         dst = wpa_s->last_eapol_src;
 162                         wpa_printf(MSG_DEBUG, "Using the source address of the"
 163                                    " last received EAPOL frame " MACSTR " as "
 164                                    "the EAPOL destination",
 165                                    MAC2STR(dst));
 166                 }
 167         } else {
 168                 /* BSSID was already set (from (Re)Assoc event, so use it as
 169                  * the EAPOL destination. */
 170                 dst = wpa_s->bssid;
 171         }
 172
 173         msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
 174         if (msg == NULL)
 175                 return -1;
 176
 177         wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
 178         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
 179         res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
 180         os_free(msg);
 181         return res;
 182 }
 183
 184
 185 /**
 186  * wpa_eapol_set_wep_key - set WEP key for the driver
 187  * @ctx: Pointer to wpa_supplicant data (wpa_s)
 188  * @unicast: 1 = individual unicast key, 0 = broadcast key
 189  * @keyidx: WEP key index (0..3)
 190  * @key: Pointer to key data
 191  * @keylen: Key length in bytes
 192  * Returns: 0 on success or < 0 on error.
 193  */
 194 static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
 195                                  const u8 *key, size_t keylen)
 196 {
 197         struct wpa_supplicant *wpa_s = ctx;
 198         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 199                 int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
 200                         WPA_CIPHER_WEP104;
 201                 if (unicast)
 202                         wpa_s->pairwise_cipher = cipher;
 203                 else
 204                         wpa_s->group_cipher = cipher;
 205         }
 206         return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
 207                                unicast ? wpa_s->bssid : NULL,
 208                                keyidx, unicast, NULL, 0, key, keylen);
 209 }
 210
 211
 212 static void wpa_supplicant_aborted_cached(void *ctx)
 213 {
 214         struct wpa_supplicant *wpa_s = ctx;
 215         wpa_sm_aborted_cached(wpa_s->wpa);
 216 }
 217
 218
 219 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, int success,
 220                                     void *ctx)
 221 {
 222         struct wpa_supplicant *wpa_s = ctx;
 223         int res, pmk_len;
 224         u8 pmk[PMK_LEN];
 225
 226         wpa_printf(MSG_DEBUG, "EAPOL authentication completed %ssuccessfully",
 227                    success ? "" : "un");
 228
 229         if (wpas_wps_eapol_cb(wpa_s) > 0)
 230                 return;
 231
 232         if (!success) {
 233                 /*
 234                  * Make sure we do not get stuck here waiting for long EAPOL
 235                  * timeout if the AP does not disconnect in case of
 236                  * authentication failure.
 237                  */
 238                 wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
 239         }
 240
 241         if (!success || !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
 242                 return;
 243
 244         if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
 245                 return;
 246
 247         wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
 248                    "handshake");
 249
 250         pmk_len = PMK_LEN;
 251         if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
 252 #ifdef CONFIG_IEEE80211R
 253                 u8 buf[2 * PMK_LEN];
 254                 wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
 255                            "driver-based 4-way hs and FT");
 256                 res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
 257                 if (res == 0) {
 258                         os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
 259                         os_memset(buf, 0, sizeof(buf));
 260                 }
 261 #else /* CONFIG_IEEE80211R */
 262                 res = -1;
 263 #endif /* CONFIG_IEEE80211R */
 264         } else {
 265                 res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
 266                 if (res) {
 267                         /*
 268                          * EAP-LEAP is an exception from other EAP methods: it
 269                          * uses only 16-byte PMK.
 270                          */
 271                         res = eapol_sm_get_key(eapol, pmk, 16);
 272                         pmk_len = 16;
 273                 }
 274         }
 275
 276         if (res) {
 277                 wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
 278                            "machines");
 279                 return;
 280         }
 281
 282         wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
 283                         "handshake", pmk, pmk_len);
 284
 285         if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
 286                             pmk_len)) {
 287                 wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
 288         }
 289
 290         wpa_supplicant_cancel_scan(wpa_s);
 291         wpa_supplicant_cancel_auth_timeout(wpa_s);
 292         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 293
 294 }
 295
 296
 297 static void wpa_supplicant_notify_eapol_done(void *ctx)
 298 {
 299         struct wpa_supplicant *wpa_s = ctx;
 300         wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
 301         if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
 302                 wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
 303         } else {
 304                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 305                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 306         }
 307 }
 308
 309 #endif /* IEEE8021X_EAPOL */
 310
 311
 312 #ifndef CONFIG_NO_WPA
 313
 314 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
 315 {
 316         int ret = 0;
 317         struct wpa_bss *curr = NULL, *bss;
 318         struct wpa_ssid *ssid = wpa_s->current_ssid;
 319         const u8 *ie;
 320
 321         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 322                 if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 323                         continue;
 324                 if (ssid == NULL ||
 325                     ((bss->ssid_len == ssid->ssid_len &&
 326                       os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
 327                      ssid->ssid_len == 0)) {
 328                         curr = bss;
 329                         break;
 330                 }
 331         }
 332
 333         if (curr) {
 334                 ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
 335                 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 336                         ret = -1;
 337
 338                 ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
 339                 if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 340                         ret = -1;
 341         } else {
 342                 ret = -1;
 343         }
 344
 345         return ret;
 346 }
 347
 348
 349 static int wpa_supplicant_get_beacon_ie(void *ctx)
 350 {
 351         struct wpa_supplicant *wpa_s = ctx;
 352         if (wpa_get_beacon_ie(wpa_s) == 0) {
 353                 return 0;
 354         }
 355
 356         /* No WPA/RSN IE found in the cached scan results. Try to get updated
 357          * scan results from the driver. */
 358         if (wpa_supplicant_update_scan_results(wpa_s) < 0)
 359                 return -1;
 360
 361         return wpa_get_beacon_ie(wpa_s);
 362 }
 363
 364
 365 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
 366                              const void *data, u16 data_len,
 367                              size_t *msg_len, void **data_pos)
 368 {
 369         return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
 370 }
 371
 372
 373 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
 374                            const u8 *buf, size_t len)
 375 {
 376         return wpa_ether_send(wpa_s, dest, proto, buf, len);
 377 }
 378
 379
 380 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
 381 {
 382         wpa_supplicant_cancel_auth_timeout(wpa_s);
 383 }
 384
 385
 386 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
 387 {
 388         wpa_supplicant_set_state(wpa_s, state);
 389 }
 390
 391
 392 /**
 393  * wpa_supplicant_get_state - Get the connection state
 394  * @wpa_s: Pointer to wpa_supplicant data
 395  * Returns: The current connection state (WPA_*)
 396  */
 397 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
 398 {
 399         return wpa_s->wpa_state;
 400 }
 401
 402
 403 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
 404 {
 405         return wpa_supplicant_get_state(wpa_s);
 406 }
 407
 408
 409 static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code)
 410 {
 411         wpa_supplicant_disassociate(wpa_s, reason_code);
 412         /* Schedule a scan to make sure we continue looking for networks */
 413         wpa_supplicant_req_scan(wpa_s, 5, 0);
 414 }
 415
 416
 417 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
 418 {
 419         wpa_supplicant_deauthenticate(wpa_s, reason_code);
 420         /* Schedule a scan to make sure we continue looking for networks */
 421         wpa_supplicant_req_scan(wpa_s, 5, 0);
 422 }
 423
 424
 425 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
 426 {
 427         return wpa_supplicant_get_ssid(wpa_s);
 428 }
 429
 430
 431 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
 432 {
 433         struct wpa_supplicant *wpa_s = ctx;
 434         return wpa_drv_get_bssid(wpa_s, bssid);
 435 }
 436
 437
 438 static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
 439                                   const u8 *addr, int key_idx, int set_tx,
 440                                   const u8 *seq, size_t seq_len,
 441                                   const u8 *key, size_t key_len)
 442 {
 443         struct wpa_supplicant *wpa_s = _wpa_s;
 444         if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
 445                 /* Clear the MIC error counter when setting a new PTK. */
 446                 wpa_s->mic_errors_seen = 0;
 447         }
 448         return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
 449                                key, key_len);
 450 }
 451
 452
 453 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
 454                                              int protection_type,
 455                                              int key_type)
 456 {
 457         return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
 458                                           key_type);
 459 }
 460
 461
 462 static int wpa_supplicant_add_pmkid(void *wpa_s,
 463                                     const u8 *bssid, const u8 *pmkid)
 464 {
 465         return wpa_drv_add_pmkid(wpa_s, bssid, pmkid);
 466 }
 467
 468
 469 static int wpa_supplicant_remove_pmkid(void *wpa_s,
 470                                        const u8 *bssid, const u8 *pmkid)
 471 {
 472         return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid);
 473 }
 474
 475
 476 #ifdef CONFIG_IEEE80211R
 477 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
 478                                         const u8 *ies, size_t ies_len)
 479 {
 480         struct wpa_supplicant *wpa_s = ctx;
 481         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
 482                 return sme_update_ft_ies(wpa_s, md, ies, ies_len);
 483         return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
 484 }
 485
 486
 487 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
 488                                          const u8 *target_ap,
 489                                          const u8 *ies, size_t ies_len)
 490 {
 491         struct wpa_supplicant *wpa_s = ctx;
 492         return wpa_drv_send_ft_action(wpa_s, action, target_ap, ies, ies_len);
 493 }
 494
 495
 496 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
 497 {
 498         struct wpa_supplicant *wpa_s = ctx;
 499         struct wpa_driver_auth_params params;
 500         struct wpa_bss *bss;
 501
 502         bss = wpa_bss_get_bssid(wpa_s, target_ap);
 503         if (bss == NULL)
 504                 return -1;
 505
 506         os_memset(&params, 0, sizeof(params));
 507         params.bssid = target_ap;
 508         params.freq = bss->freq;
 509         params.ssid = bss->ssid;
 510         params.ssid_len = bss->ssid_len;
 511         params.auth_alg = WPA_AUTH_ALG_FT;
 512         params.local_state_change = 1;
 513         return wpa_drv_authenticate(wpa_s, &params);
 514 }
 515 #endif /* CONFIG_IEEE80211R */
 516
 517 #endif /* CONFIG_NO_WPA */
 518
 519
 520 #ifdef CONFIG_TDLS
 521
 522 static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
 523                                         int *tdls_ext_setup)
 524 {
 525         struct wpa_supplicant *wpa_s = ctx;
 526
 527         *tdls_supported = 0;
 528         *tdls_ext_setup = 0;
 529
 530         if (!wpa_s->drv_capa_known)
 531                 return -1;
 532
 533         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
 534                 *tdls_supported = 1;
 535
 536         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
 537                 *tdls_ext_setup = 1;
 538
 539         return 0;
 540 }
 541
 542
 543 static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
 544                                          u8 action_code, u8 dialog_token,
 545                                          u16 status_code, const u8 *buf,
 546                                          size_t len)
 547 {
 548         struct wpa_supplicant *wpa_s = ctx;
 549         return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
 550                                       status_code, buf, len);
 551 }
 552
 553
 554 static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
 555 {
 556         struct wpa_supplicant *wpa_s = ctx;
 557         return wpa_drv_tdls_oper(wpa_s, oper, peer);
 558 }
 559
 560
 561 static int wpa_supplicant_tdls_peer_addset(
 562         void *ctx, const u8 *peer, int add, u16 capability,
 563         const u8 *supp_rates, size_t supp_rates_len)
 564 {
 565         struct wpa_supplicant *wpa_s = ctx;
 566         struct hostapd_sta_add_params params;
 567
 568         params.addr = peer;
 569         params.aid = 1;
 570         params.capability = capability;
 571         params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
 572         params.ht_capabilities = NULL;
 573         params.listen_interval = 0;
 574         params.supp_rates = supp_rates;
 575         params.supp_rates_len = supp_rates_len;
 576         params.set = !add;
 577
 578         return wpa_drv_sta_add(wpa_s, &params);
 579 }
 580
 581 #endif /* CONFIG_TDLS */
 582
 583
 584 enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field)
 585 {
 586         if (os_strcmp(field, "IDENTITY") == 0)
 587                 return WPA_CTRL_REQ_EAP_IDENTITY;
 588         else if (os_strcmp(field, "PASSWORD") == 0)
 589                 return WPA_CTRL_REQ_EAP_PASSWORD;
 590         else if (os_strcmp(field, "NEW_PASSWORD") == 0)
 591                 return WPA_CTRL_REQ_EAP_NEW_PASSWORD;
 592         else if (os_strcmp(field, "PIN") == 0)
 593                 return WPA_CTRL_REQ_EAP_PIN;
 594         else if (os_strcmp(field, "OTP") == 0)
 595                 return WPA_CTRL_REQ_EAP_OTP;
 596         else if (os_strcmp(field, "PASSPHRASE") == 0)
 597                 return WPA_CTRL_REQ_EAP_PASSPHRASE;
 598         return WPA_CTRL_REQ_UNKNOWN;
 599 }
 600
 601
 602 const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
 603                                                const char *default_txt,
 604                                                const char **txt)
 605 {
 606         const char *ret = NULL;
 607
 608         *txt = default_txt;
 609
 610         switch (field) {
 611         case WPA_CTRL_REQ_EAP_IDENTITY:
 612                 *txt = "Identity";
 613                 ret = "IDENTITY";
 614                 break;
 615         case WPA_CTRL_REQ_EAP_PASSWORD:
 616                 *txt = "Password";
 617                 ret = "PASSWORD";
 618                 break;
 619         case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
 620                 *txt = "New Password";
 621                 ret = "NEW_PASSWORD";
 622                 break;
 623         case WPA_CTRL_REQ_EAP_PIN:
 624                 *txt = "PIN";
 625                 ret = "PIN";
 626                 break;
 627         case WPA_CTRL_REQ_EAP_OTP:
 628                 ret = "OTP";
 629                 break;
 630         case WPA_CTRL_REQ_EAP_PASSPHRASE:
 631                 *txt = "Private key passphrase";
 632                 ret = "PASSPHRASE";
 633                 break;
 634         default:
 635                 break;
 636         }
 637
 638         /* txt needs to be something */
 639         if (*txt == NULL) {
 640                 wpa_printf(MSG_WARNING, "No message for request %d", field);
 641                 ret = NULL;
 642         }
 643
 644         return ret;
 645 }
 646
 647 #ifdef IEEE8021X_EAPOL
 648 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
 649 static void wpa_supplicant_eap_param_needed(void *ctx,
 650                                             enum wpa_ctrl_req_type field,
 651                                             const char *default_txt)
 652 {
 653         struct wpa_supplicant *wpa_s = ctx;
 654         struct wpa_ssid *ssid = wpa_s->current_ssid;
 655         const char *field_name, *txt = NULL;
 656         char *buf;
 657         size_t buflen;
 658         int len;
 659
 660         if (ssid == NULL)
 661                 return;
 662
 663         wpas_notify_network_request(wpa_s, ssid, field, default_txt);
 664
 665         field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
 666                                                        &txt);
 667         if (field_name == NULL) {
 668                 wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
 669                            field);
 670                 return;
 671         }
 672
 673         buflen = 100 + os_strlen(txt) + ssid->ssid_len;
 674         buf = os_malloc(buflen);
 675         if (buf == NULL)
 676                 return;
 677         len = os_snprintf(buf, buflen,
 678                           WPA_CTRL_REQ "%s-%d:%s needed for SSID ",
 679                           field_name, ssid->id, txt);
 680         if (len < 0 || (size_t) len >= buflen) {
 681                 os_free(buf);
 682                 return;
 683         }
 684         if (ssid->ssid && buflen > len + ssid->ssid_len) {
 685                 os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
 686                 len += ssid->ssid_len;
 687                 buf[len] = '\0';
 688         }
 689         buf[buflen - 1] = '\0';
 690         wpa_msg(wpa_s, MSG_INFO, "%s", buf);
 691         os_free(buf);
 692 }
 693 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 694 #define wpa_supplicant_eap_param_needed NULL
 695 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 696
 697
 698 static void wpa_supplicant_port_cb(void *ctx, int authorized)
 699 {
 700         struct wpa_supplicant *wpa_s = ctx;
 701 #ifdef CONFIG_AP
 702         if (wpa_s->ap_iface) {
 703                 wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
 704                            "port status: %s",
 705                            authorized ? "Authorized" : "Unauthorized");
 706                 return;
 707         }
 708 #endif /* CONFIG_AP */
 709         wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
 710                    authorized ? "Authorized" : "Unauthorized");
 711         wpa_drv_set_supp_port(wpa_s, authorized);
 712 }
 713
 714
 715 static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject,
 716                                    const char *cert_hash,
 717                                    const struct wpabuf *cert)
 718 {
 719         struct wpa_supplicant *wpa_s = ctx;
 720
 721         wpas_notify_certification(wpa_s, depth, subject, cert_hash, cert);
 722 }
 723
 724
 725 static void wpa_supplicant_status_cb(void *ctx, const char *status,
 726                                      const char *parameter)
 727 {
 728         struct wpa_supplicant *wpa_s = ctx;
 729
 730         wpas_notify_eap_status(wpa_s, status, parameter);
 731 }
 732 #endif /* IEEE8021X_EAPOL */
 733
 734
 735 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
 736 {
 737 #ifdef IEEE8021X_EAPOL
 738         struct eapol_ctx *ctx;
 739         ctx = os_zalloc(sizeof(*ctx));
 740         if (ctx == NULL) {
 741                 wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
 742                 return -1;
 743         }
 744
 745         ctx->ctx = wpa_s;
 746         ctx->msg_ctx = wpa_s;
 747         ctx->eapol_send_ctx = wpa_s;
 748         ctx->preauth = 0;
 749         ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
 750         ctx->eapol_send = wpa_supplicant_eapol_send;
 751         ctx->set_wep_key = wpa_eapol_set_wep_key;
 752         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 753         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 754         ctx->aborted_cached = wpa_supplicant_aborted_cached;
 755         ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
 756         ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
 757         ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
 758         ctx->wps = wpa_s->wps;
 759         ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
 760         ctx->port_cb = wpa_supplicant_port_cb;
 761         ctx->cb = wpa_supplicant_eapol_cb;
 762         ctx->cert_cb = wpa_supplicant_cert_cb;
 763         ctx->status_cb = wpa_supplicant_status_cb;
 764         ctx->cb_ctx = wpa_s;
 765         wpa_s->eapol = eapol_sm_init(ctx);
 766         if (wpa_s->eapol == NULL) {
 767                 os_free(ctx);
 768                 wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
 769                            "machines.");
 770                 return -1;
 771         }
 772 #endif /* IEEE8021X_EAPOL */
 773
 774         return 0;
 775 }
 776
 777
 778 static void wpa_supplicant_set_rekey_offload(void *ctx, const u8 *kek,
 779                                              const u8 *kck,
 780                                              const u8 *replay_ctr)
 781 {
 782         struct wpa_supplicant *wpa_s = ctx;
 783
 784         wpa_drv_set_rekey_info(wpa_s, kek, kck, replay_ctr);
 785 }
 786
 787
 788 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
 789 {
 790 #ifndef CONFIG_NO_WPA
 791         struct wpa_sm_ctx *ctx;
 792         ctx = os_zalloc(sizeof(*ctx));
 793         if (ctx == NULL) {
 794                 wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
 795                 return -1;
 796         }
 797
 798         ctx->ctx = wpa_s;
 799         ctx->msg_ctx = wpa_s;
 800         ctx->set_state = _wpa_supplicant_set_state;
 801         ctx->get_state = _wpa_supplicant_get_state;
 802         ctx->deauthenticate = _wpa_supplicant_deauthenticate;
 803         ctx->disassociate = _wpa_supplicant_disassociate;
 804         ctx->set_key = wpa_supplicant_set_key;
 805         ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
 806         ctx->get_bssid = wpa_supplicant_get_bssid;
 807         ctx->ether_send = _wpa_ether_send;
 808         ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
 809         ctx->alloc_eapol = _wpa_alloc_eapol;
 810         ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
 811         ctx->add_pmkid = wpa_supplicant_add_pmkid;
 812         ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
 813 #ifndef CONFIG_NO_CONFIG_BLOBS
 814         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 815         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 816 #endif /* CONFIG_NO_CONFIG_BLOBS */
 817         ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
 818 #ifdef CONFIG_IEEE80211R
 819         ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
 820         ctx->send_ft_action = wpa_supplicant_send_ft_action;
 821         ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
 822 #endif /* CONFIG_IEEE80211R */
 823 #ifdef CONFIG_TDLS
 824         ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
 825         ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
 826         ctx->tdls_oper = wpa_supplicant_tdls_oper;
 827         ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
 828 #endif /* CONFIG_TDLS */
 829         ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
 830
 831         wpa_s->wpa = wpa_sm_init(ctx);
 832         if (wpa_s->wpa == NULL) {
 833                 wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
 834                            "machine");
 835                 return -1;
 836         }
 837 #endif /* CONFIG_NO_WPA */
 838
 839         return 0;
 840 }
 841
 842
 843 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
 844                                         struct wpa_ssid *ssid)
 845 {
 846         struct rsn_supp_config conf;
 847         if (ssid) {
 848                 os_memset(&conf, 0, sizeof(conf));
 849                 conf.network_ctx = ssid;
 850                 conf.peerkey_enabled = ssid->peerkey;
 851                 conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
 852 #ifdef IEEE8021X_EAPOL
 853                 conf.proactive_key_caching = ssid->proactive_key_caching;
 854                 conf.eap_workaround = ssid->eap_workaround;
 855                 conf.eap_conf_ctx = &ssid->eap;
 856 #endif /* IEEE8021X_EAPOL */
 857                 conf.ssid = ssid->ssid;
 858                 conf.ssid_len = ssid->ssid_len;
 859                 conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
 860         }
 861         wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
 862 }